How does air source heat pump heating work? How does it work?

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How does an air source heat pump work? How does it work?

Answer: To know the working principle of heat pump heating, you must first understand the structure of the air source heat pump. Air source heat pumps are generally composed of four major components, namely compressors, evaporators, condensers, and throttle valves, and the system basically circulates around these major components.

First of all, the evaporator absorbs heat from the air, and how much heat it can absorb depends on the refrigerant in the evaporator (common ones are R22 , R410A, etc.). After the evaporator absorbs heat, it is compressed into a high-temperature and high-pressure gaseous state by a compressor. Here, the compressor is driven by electric energy, and the temperature of the compressed gas is related to the compressor.

The high-temperature and high-pressure gas comes out of the compressor and then passes through the condenser to exchange heat and transfer the heat to the medium (if the medium is water, it is what we call a water system, which is the common heat pump heating now; there is also a It is a wind system, such as waterless floor heating and hot air fans).

After the heat exchange, the gas passes through throttling devices such as throttle valves to become a low-temperature and low-pressure state again, and then passes through the evaporator to form a complete closed-loop system, which goes round and round and circulates continuously.

From the principle of the air source heat pump, it can be seen that only the compressor consumes electric energy when the whole system is working, and the heat mainly comes from the air, so the energy efficiency ratio of the heat pump is much higher than that of the electric heating equipment directly heated by electricity. Many people question that the high energy efficiency of air source heat pumps does not conform to energy conservation. In fact, they do not understand the working principle of air source heat pumps. It is easy to explain if they understand it.